Google has a short feature as a timer where you can start timer start or reset. Here is the short description of Google timer and its uses.
Just go to google and search for “timer” you will get an interface to communicate with timer and stopwatch.
After completion of time-set it came up warning with sound of completion.
You can use stopwatch too or both simultaneously which makes it easier for a user to manipulate with watch online.
You can search for “timer 10 minutes” automatically it set for 10 minutes of the timer on automatically.